​Body-mass index, or​ BMI, takes both weight and height into account when assessing whether an individual is underweight or overweight. BMI varies directly as​ one's weight, in​ pounds, and inversely as the square of​ one's height, in inches. In​ adults, normal values for the BMI are between 20 and​ 25, inclusive. Values below 20 indicate that an individual is underweight and values above 25 indicate that an individual is overweight. A person who weighs 180 pounds and is 5​ feet, or 60​ inches, tall has a BMI of 35.15. Use the​ four-step procedure for solving variations to determine what the BMI​ is, to the nearest​ tenth, for a 155​-pound person who is 5 feet 5 inches tall. Is this person​ underweight, normal, or​ overweight?